Did you know that you can convert old wine and liquor bottles into self watering planters for a little window garden? Be careful when cutting glass, score one single circle around the bottle, then alternate between hot and cold water on the upper portion until it literally pops right off. Always wear eye protection as glass is unpredictable and tends to shatter, sometimes even if you do everything properly. Don’t forget to sand the edges down when you’re done so you won’t have to worry about future accidents.
Please note that those are strings hanging down from the dirt, they function as wicks to keep the moisture level in the dirt in the optimal range. As the soil and the top of the strings dry out, more water gets sucked up through the string just like in the xylem of the plants themselves.